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    <meta charset="UTF-8">
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    <title>Document</title>
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<body>
    <script>
        let arr = [1, 2, 3, 4, 5, 6, 7];
        console.log(...arr)

        let arr1 = ["张三", "李四", "王五"]
        console.log(...arr1)

        let set = new Set(["张三", "李四", "王五"])
        console.log(...set)

        let map = new Map([
            ["name","张三"],
            ["age",18],
            [[1,2],"李四"]
        ])
        console.log(map)
    </script>
</body>

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